| Johnston | Cameron | Bonnie Doon, Quairading | GJ0 | 1927 |
| Johnston | D. B. | Kuringup, Kojonup Locs. 8305, 7933, 5290, 6200, 6022, 5722, East Katanning | DJ7 and 43D, 25E | 1962 |
| Johnston | D. J. | Golf View, Mt. Yokine | JU7 | 1962 |
| Johnston | D. K. & W. G. | Glendale and Boginarup, Manjimup | M0O and 18B, 8A | 1962 |
| Johnston | D. N. | Riverside, Quellington, via York | 6NJ and 42A, 25B | 1962 |
| Johnston | David | Myrtle Vale, Markegin, via Pingelly | UJ7 | 1924 |
| Johnston | Dominic | Fitzgerald Loc. 258/9, Salmon Gums | 1DJ | 1927 |
| Johnston | Donald | Boonmulling, Greenhills | DJ0 | 1927 |
| Johnston | E. P. | Bellbeing, East Beverley | E1J | 1912 |
| Johnston | E. P. | Loc. 409, 453, Pingrup | R9J and 24A, 49B | 1962 |
| Johnston | Edward Jas. | Kendanora, Cranbrook | Q4J | 1924 |
| Johnston | Edwd. | Lakeside, Lakeside | EJ1 | 1912 |
| Johnston | Ernest C. | Nyola, Dangin | EJ1 | 1927 |
| Johnston | Frank | Commonage, Nannine | 5MF | 1912 |
| Johnston | Frank | Dardanup, Dardanup | FJ7 | 1912 |
| Johnston | Frank | Dardanup | FJ7 | 1924 |
| Johnston | G. de C. | Sussex 1860-1-3, Busselton | 7JN and 6B, 29A | 1962 |
| Johnston | G. E. | Fairlands, Sussex Loc. 1598, Margaret River | YF2 and 21A, 106B | 1962 |
| Johnston | G. G. | Weona Vale, Nyabing | 3JX and 53F, 30B | 1962 |
| Johnston | Geo. Ed. | Colombo Street, Victoria Park | 0GE | 1924 |
| Johnston | George | Seymour, Tenterden | X6G | 1924 |
| Johnston | H. A. | Kuminin, via Bruce Rock | 4UJ | 1924 |
| Johnston | H. C. | Blairmore, via Wickepin | 0VO | 1924 |
| Johnston | H. F. | Wandu, Near Swan View | 7FJ | 1912 |
| Johnston | H. W. | Keswick, Tambellup | JJ2 and 20B, 16A | 1962 |
| Johnston | Harley R. | Ringwood, Upper Preston | J5J | 1912 |
| Johnston | Harold | Merna Farm, Dangin | HJ4 | 1912 |
| Johnston | Harold | Merna Farm, Dangin | HJ4 | 1924 |
| Johnston | Henry D. | Glen Erna, Mount Erin | H0J | 1927 |
| Johnston | Herbert F. | Glen Iris, Bunbury | FH3 | 1924 |
| Johnston | I. P. & H. D. | Renegagles Refuge, Dardanup | H7J and 4D, 16E | 1962 |
| Johnston | J. | Cairn Hill, Burracoppin | QF3 and 19C, 46E | 1962 |
| Johnston | J. D. | Riverslea, Bokal | R1V and 53F, 2C | 1962 |
| Johnston | J. F. | Leschenault, Bunbury | 1FJ | 1912 |
| Johnston | J. P. & H. | Flowery Patch, Avon Locs. 24315, 24676, 19174, 26776, 20345, 20637, Cunderdin | 0XJ and 22D, 49E | 1962 |
| Johnston | J. P. & M. | Taunton Vale, Dardanup | TV0 and 54F, 20D | 1962 |
| Johnston | J. Q. | Serpentine A. A. Lot 55 Co. 50 Locs. 31, 32, 168, Mardelia | 0JQ and 25A, 3B | 1962 |
| Johnston | J. T. | Wandinna, Broome | 0NT | 1924 |
| Johnston | James | Broomridge Farm, Yallingup | V0J | 1924 |
| Johnston | Jas. W. | Carine, Wanneroo | 0XJ | 1924 |
| Johnston | John Albert | Aurora, Cranbrook | 1YQ | 1925 |
| Johnston | John Donald & Colin | Riverslea, Bokal Siding | 3JR | 1927 |
| Johnston | John E. | Bankhead, Dwellingup | Y6J | 1924 |
| Johnston | John G. | Avon Loc. 23151, Totadjin | XU4 | 1924 |
| Johnston | John Thos. | Carnot Bay Station, Broome | JH6 | 1924 |
| Johnston | John Thos. | Bullarora, Broome | QR6 | 1924 |
| Johnston | John Thos. | Bullarora, Broome | T0Z | 1924 |
| Johnston | Joseph | Yilagrn Loc. 155, Westonia | 2YQ | 1925 |
| Johnston | L. C. | 1950-1, Kojonup | L1J and 34B, 22A | 1962 |
| Johnston | L. F. | Boonmunya, Cranbrook | O7H and 53F, 10B | 1962 |
